Home / 520,056,130.16-717,661,905.72-285,098,760.56

Finding the Fourth Proportional to 520,056,130.16, 717,661,905.72 and 285,098,760.56

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Solution

The fourth proportional to 520,056,130.16, 717,661,905.72 and 285,098,760.56 is: 393,427,762.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,056,130.16 : 717,661,905.72 = 285,098,760.56 : x
  2. Step 2: Convert to fraction form
    520,056,130.16/717,661,905.72 = 285,098,760.56/x
  3. Step 3: Cross multiply
    520,056,130.16x = 717,661,905.72 × 285,098,760.56
  4. Step 4: Simplify right side
    520,056,130.16x = 204,604,519,821,899,584
  5. Step 5: Solve for x
    x = 204,604,519,821,899,584/520,056,130.16
  6. Step 6: Final answer
    x = 393,427,762.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.